Tullio Facchinetti

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Interest on using mobile autonomous agents has been growing, recently, due to their capacity to cooperate for diverse purposes, from rescue to demining and security. However, such cooperation requires the exchange of state data that is time sensitive and thus, applications should be aware of data temporal coherency. In this paper we describe the(More)
Wireless communication technology is spreading quickly in almost all the information technology areas as a consequence of a gradual enhancement in quality and security of the communication, together with a decrease in the related costs. This facilitates the development of relatively low-cost teams of autonomous (robotic) mobile units that cooperate to(More)
This paper proposes a set of web-based indicators for quantifying and ranking the relevance of terms related to key-issues in Ecology and Sustainability Science. Search engines that operate in different contexts (e.g. global, social, scientific) are considered as web information carriers (WICs) and are able to analyse; (i) relevance on different levels:(More)
Wireless communication technology is spreading quickly in almost all the information technology areas as a consequence of a gradual enhancement in quality and security of the communication, together with a decrease in the related costs. This facilitates the development of relatively low-cost teams of autonomous (robotic) mobile units that cooperate to(More)
Timed-token networks, such as FDDI, support both synchronous real-time traffic and non real-time traffic (asynchronous messages). The medium access scheme of FDDI guarantees up to one half of the total network band-width for synchronous communication. Further enhancements , such as FDDI-M, improve the bandwidth dedicated to real-time messages. However, the(More)
Low-level support of peripheral devices is one of the most demanding activities in a real-time operating system. In fact, the rapid development of new interface boards causes a tremendous effort at the operating system level for writing and testing low-level drivers for supporting the new hardware. The possibility of reusing legacy drivers in real-time(More)
Micro-Electro-Mechanical Systems (MEMS) sensors are used nowadays in a wide range of applications, from robotics to entertainment. Recently, this technology has also been adopted to equip Inertial Measurement Units (IMUs) replacing traditional electro-mechanical sensors. In this work we present a low-cost embedded IMU which is based on a low-cost embedded(More)
Token passing channel access mechanisms are used in several communication networks. An important class of token passing approaches are the so-called timed token protocols , which are able to manage both real-time traffic and non real-time traffic. Recently, a new token passing protocol , called Budget Sharing Token protocol (BuST), was proposed to improve(More)